Size and shape
A slim pelagic shark averaging around 3.1 m (10 ft).
Guía de especie
Una guía de campo clara centrada en hábitat, identificación, comportamiento y conservación sin enterrar lo útil.
The blue shark (Prionace glauca) is a requiem shark in the family Carcharhinidae and the only species in the genus Prionace. It inhabits deep waters in the world’s temperate and tropical oceans and prefers cooler waters. Adults average around 3.1 m (10 ft). Blue sharks undertake long-distance migrations (for example, between New England and South America). They are generally lethargic but capable of very quick movement. Blue sharks are viviparous and are noted for very large litters, commonly 25 to over 100 pups. Their diet consists primarily of small fish and squid, though they can take larger prey. Known predators include killer whales and larger sharks such as tiger sharks and great white sharks. They are among the most abundant pelagic sharks, and large numbers are taken as fisheries bycatch on longlines and nets. Fossil teeth attributable to this species are known from Miocene and Pliocene deposits in multiple regions.
Listed as Near Threatened by the IUCN; substantial numbers are removed by fisheries as bycatch on longlines and nets.
Generally lethargic but capable of very quick movement; undertakes long-distance migrations.
Identificación
Los rasgos visuales que los buceadores pueden usar bajo el agua y las especies con las que más se confunde.
A slim pelagic shark averaging around 3.1 m (10 ft).
Inhabits deep temperate and tropical ocean waters and prefers cooler waters.
Distribución y movimiento
La distribución amplia, el movimiento estacional o la migración que determinan dónde encuentran los buceadores esta especie.
Generally lethargic but capable of very quick movement; undertakes long-distance migrations.
Dieta
Contexto alimentario útil que a menudo explica hábitat, movimiento y estilo de encuentro.
Feeds primarily on small fish and squid, but can take larger prey.
Población
Estimaciones publicadas cuando son creíbles, o una nota explícita cuando no existe un recuento global fiable.
Described as one of the most abundant pelagic sharks, though no numeric estimate provided in source.
Conservación
Estado, presiones y protección con base en fuentes citadas, no en relleno.
Listed as Near Threatened by the IUCN; substantial numbers are removed by fisheries as bycatch on longlines and nets.
Large numbers are caught as bycatch on longlines and nets, contributing to population pressure.
Encuentros responsables
Guía de conservación para buceadores que quieren el encuentro sin añadir presión.
Give blue shark space, avoid blocking the animal's path, and follow local site and operator rules for wildlife interactions with sharks.
Notas de campo
Contexto útil de la especie que hace el encuentro más significativo bajo el agua.
The blue shark is the sole species in the genus Prionace.
Blue sharks commonly produce litters of 25 to over 100 pups.
Fossil teeth attributed to this species are known from the Miocene and Pliocene in several regions.
Preguntas frecuentes
Respuestas claras de planificación y conservación escritas para visibilidad en buscadores y recuperación por IA.
Fuentes de investigación
Referencias principales y fiables detrás de las afirmaciones de campo y conservación de esta página.
Primary wildlife guide source.
Supporting wildlife source.
Supporting wildlife source.
Supporting wildlife source.
Especies relacionadas
Guías de especies relacionadas dentro de la misma familia de encuentro.